import torch
from torch import nn
from torch.nn import CrossEntropyLoss, MSELoss

from transformers.file_utils import add_start_docstrings, add_start_docstrings_to_model_forward
from transformers.models.bert.modeling_bert import (
    BERT_INPUTS_DOCSTRING,
    BERT_START_DOCSTRING,
    BertEmbeddings,
    BertLayer,
    BertPooler,
    BertPreTrainedModel,
)


def 	lowerCamelCase					(	UpperCamelCase     :				int							)   ->    Union[str, Any]:
		_lowerCamelCase				   =  torch.exp(UpperCamelCase							)
		_lowerCamelCase				   =  torch.sum(UpperCamelCase			,       dim=1							)  # sum of exp(x_i)
		_lowerCamelCase				   =  torch.sum(x * exp_x			,       dim=1							)  # sum of x_i * exp(x_i)
		return torch.log(UpperCamelCase							) - B / A





class     lowerCAmelCase__     (				nn.Module			):


		'''simple docstring'''






		def __init__(       self     :     Union[str, Any]     ,  snake_case__     :     Any		)      ->	Optional[Any]:
				super().__init__()
				_lowerCamelCase				   =  config.output_attentions
				_lowerCamelCase				   =  config.output_hidden_states
				_lowerCamelCase				   =  nn.ModuleList([BertLayer(snake_case__		) for _ in range(config.num_hidden_layers		)]		)
				_lowerCamelCase				   =  nn.ModuleList([BertHighway(snake_case__		) for _ in range(config.num_hidden_layers		)]		)

				_lowerCamelCase				   =  [-1 for _ in range(config.num_hidden_layers		)]
		def   _snake_case       (       self     :     Union[str, Any]     ,  snake_case__     :     str		)      ->	Optional[int]:
				if (type(snake_case__		) is float) or (type(snake_case__		) is int):
						for i in range(len(self.early_exit_entropy		)		):
								_lowerCamelCase				   =  x
				else:
						_lowerCamelCase				   =  x
		def   _snake_case       (       self     :     Tuple     ,  snake_case__     :     Optional[int]		)      ->	int:
				_lowerCamelCase				   =  pooler.state_dict()
				for highway in self.highway:
						for name, param in highway.pooler.state_dict().items():
								param.copy_(loaded_model[name]		)



		def   _snake_case       (       self     :     Union[str, Any]     ,  snake_case__     :     Union[str, Any]     ,  snake_case__     :     int=None     ,  snake_case__     :     Optional[int]=None     ,  snake_case__     :     List[str]=None     ,  snake_case__     :     Dict=None     ,  )      ->	List[str]:
				_lowerCamelCase				   =  ()
				_lowerCamelCase				   =  ()
				_lowerCamelCase				   =  ()
				for i, layer_module in enumerate(self.layer		):
						if self.output_hidden_states:
								_lowerCamelCase				   =  all_hidden_states + (hidden_states,)

						_lowerCamelCase				   =  layer_module(
						    snake_case__     ,  snake_case__     ,  head_mask[i]     ,  snake_case__     ,  snake_case__		)
						_lowerCamelCase				   =  layer_outputs[0]

						if self.output_attentions:
								_lowerCamelCase				   =  all_attentions + (layer_outputs[1],)

						_lowerCamelCase				   =  (hidden_states,)
						if self.output_hidden_states:
								_lowerCamelCase				   =  current_outputs + (all_hidden_states,)
						if self.output_attentions:
								_lowerCamelCase				   =  current_outputs + (all_attentions,)

						_lowerCamelCase				   =  self.highway[i](snake_case__		)
						# logits, pooled_output

						if not self.training:
								_lowerCamelCase				   =  highway_exit[0]
								_lowerCamelCase				   =  entropy(snake_case__		)
								_lowerCamelCase				   =  highway_exit + (highway_entropy,)  # logits, hidden_states(?), entropy
								_lowerCamelCase				   =  all_highway_exits + (highway_exit,)

								if highway_entropy < self.early_exit_entropy[i]:
										_lowerCamelCase				   =  (highway_logits,) + current_outputs[1:] + (all_highway_exits,)
										raise HighwayException(snake_case__     ,  i + 1		)
						else:
								_lowerCamelCase				   =  all_highway_exits + (highway_exit,)

        # Add last layer
				if self.output_hidden_states:
						_lowerCamelCase				   =  all_hidden_states + (hidden_states,)

				_lowerCamelCase				   =  (hidden_states,)
				if self.output_hidden_states:
						_lowerCamelCase				   =  outputs + (all_hidden_states,)
				if self.output_attentions:
						_lowerCamelCase				   =  outputs + (all_attentions,)

				_lowerCamelCase				   =  outputs + (all_highway_exits,)
				return outputs  # last-layer hidden state, (all hidden states), (all attentions), all highway exits





@add_start_docstrings(
    'The Bert Model transformer with early exiting (DeeBERT). '     ,SCREAMING_SNAKE_CASE_     ,)
class     lowerCAmelCase__     (				SCREAMING_SNAKE_CASE_			):


		'''simple docstring'''






		def __init__(       self     :     Dict     ,  snake_case__     :     List[Any]		)      ->	Any:
				super().__init__(snake_case__		)
				_lowerCamelCase				   =  config

				_lowerCamelCase				   =  BertEmbeddings(snake_case__		)
				_lowerCamelCase				   =  DeeBertEncoder(snake_case__		)
				_lowerCamelCase				   =  BertPooler(snake_case__		)

				self.init_weights()
		def   _snake_case       (       self     :     Tuple		)      ->	Tuple:
				self.encoder.init_highway_pooler(self.pooler		)
		def   _snake_case       (       self     :     int		)      ->	List[Any]:
				return self.embeddings.word_embeddings
		def   _snake_case       (       self     :     Optional[int]     ,  snake_case__     :     List[Any]		)      ->	Any:
				_lowerCamelCase				   =  value
		def   _snake_case       (       self     :     List[Any]     ,  snake_case__     :     int		)      ->	Any:
				for layer, heads in heads_to_prune.items():
						self.encoder.layer[layer].attention.prune_heads(snake_case__		)



		@add_start_docstrings_to_model_forward(snake_case__		)
		def   _snake_case       (       self     :     Union[str, Any]     ,  snake_case__     :     Dict=None     ,  snake_case__     :     Any=None     ,  snake_case__     :     Dict=None     ,  snake_case__     :     Any=None     ,  snake_case__     :     List[str]=None     ,  snake_case__     :     Union[str, Any]=None     ,  snake_case__     :     str=None     ,  snake_case__     :     List[Any]=None     ,  )      ->	List[str]:
				if input_ids is not None and inputs_embeds is not None:
						raise ValueError('You cannot specify both input_ids and inputs_embeds at the same time'		)
				elif input_ids is not None:
						_lowerCamelCase				   =  input_ids.size()
				elif inputs_embeds is not None:
						_lowerCamelCase				   =  inputs_embeds.size()[:-1]
				else:
						raise ValueError('You have to specify either input_ids or inputs_embeds'		)

				_lowerCamelCase				   =  input_ids.device if input_ids is not None else inputs_embeds.device

				if attention_mask is None:
						_lowerCamelCase				   =  torch.ones(snake_case__     ,  device=snake_case__		)
				if encoder_attention_mask is None:
						_lowerCamelCase				   =  torch.ones(snake_case__     ,  device=snake_case__		)
				if token_type_ids is None:
						_lowerCamelCase				   =  torch.zeros(snake_case__     ,  dtype=torch.long     ,  device=snake_case__		)

				# We can provide a self-attention mask of dimensions [batch_size, from_seq_length, to_seq_length]
				# ourselves in which case we just need to make it broadcastable to all heads.
				_lowerCamelCase				   =  self.get_extended_attention_mask(snake_case__     ,  snake_case__     ,  snake_case__		)

				# If a 2D ou 3D attention mask is provided for the cross-attention
				# we need to make broadcastable to [batch_size, num_heads, seq_length, seq_length]
				if encoder_attention_mask.dim() == 3:
						_lowerCamelCase				   =  encoder_attention_mask[:, None, :, :]
				if encoder_attention_mask.dim() == 2:
						_lowerCamelCase				   =  encoder_attention_mask[:, None, None, :]

				_lowerCamelCase				   =  encoder_extended_attention_mask.to(
				    dtype=next(self.parameters()		).dtype		)  # fp16 compatibility
				_lowerCamelCase				   =  (1.0 - encoder_extended_attention_mask) * -1_0000.0

				# Prepare head mask if needed
				# 1.0 in head_mask indicate we keep the head
				# attention_probs has shape bsz x n_heads x N x N
				# input head_mask has shape [num_heads] or [num_hidden_layers x num_heads]
				# and head_mask is converted to shape [num_hidden_layers x batch x num_heads x seq_length x seq_length]
				_lowerCamelCase				   =  self.get_head_mask(snake_case__     ,  self.config.num_hidden_layers		)

				_lowerCamelCase				   =  self.embeddings(
				    input_ids=snake_case__     ,  position_ids=snake_case__     ,  token_type_ids=snake_case__     ,  inputs_embeds=snake_case__		)
				_lowerCamelCase				   =  self.encoder(
				    snake_case__     ,  attention_mask=snake_case__     ,  head_mask=snake_case__     ,  encoder_hidden_states=snake_case__     ,  encoder_attention_mask=snake_case__     ,  )
				_lowerCamelCase				   =  encoder_outputs[0]
				_lowerCamelCase				   =  self.pooler(snake_case__		)

				_lowerCamelCase				   =  (
				    sequence_output,
				    pooled_output,
				) + encoder_outputs[
				    1:
				]  # add hidden_states and attentions if they are here
				return outputs  # sequence_output, pooled_output, (hidden_states), (attentions), highway exits





class     lowerCAmelCase__     (				SCREAMING_SNAKE_CASE_			):


		'''simple docstring'''






		def __init__(       self     :     Optional[int]     ,  snake_case__     :     Dict     ,  snake_case__     :     Any		)      ->	str:
				_lowerCamelCase				   =  message
				_lowerCamelCase				   =  exit_layer  # start from 1!





class     lowerCAmelCase__     (				nn.Module			):


		'''simple docstring'''






		def __init__(       self     :     Union[str, Any]     ,  snake_case__     :     Optional[Any]		)      ->	Any:
				super().__init__()
				_lowerCamelCase				   =  BertPooler(snake_case__		)
				_lowerCamelCase				   =  nn.Dropout(config.hidden_dropout_prob		)
				_lowerCamelCase				   =  nn.Linear(config.hidden_size     ,  config.num_labels		)



		def   _snake_case       (       self     :     Optional[Any]     ,  snake_case__     :     Dict		)      ->	Optional[Any]:
				# Pooler
				_lowerCamelCase				   =  encoder_outputs[0]
				_lowerCamelCase				   =  self.pooler(snake_case__		)
				# "return" pooler_output

				# BertModel
				_lowerCamelCase				   =  (pooler_input, pooler_output) + encoder_outputs[1:]
				# "return" bmodel_output

				# Dropout and classification
				_lowerCamelCase				   =  bmodel_output[1]

				_lowerCamelCase				   =  self.dropout(snake_case__		)
				_lowerCamelCase				   =  self.classifier(snake_case__		)

				return logits, pooled_output





@add_start_docstrings(
    'Bert Model (with early exiting - DeeBERT) with a classifier on top,\n    also takes care of multi-layer training. '     ,SCREAMING_SNAKE_CASE_     ,)
class     lowerCAmelCase__     (				SCREAMING_SNAKE_CASE_			):


		'''simple docstring'''






		def __init__(       self     :     Optional[int]     ,  snake_case__     :     Dict		)      ->	Dict:
				super().__init__(snake_case__		)
				_lowerCamelCase				   =  config.num_labels
				_lowerCamelCase				   =  config.num_hidden_layers

				_lowerCamelCase				   =  DeeBertModel(snake_case__		)
				_lowerCamelCase				   =  nn.Dropout(config.hidden_dropout_prob		)
				_lowerCamelCase				   =  nn.Linear(config.hidden_size     ,  self.config.num_labels		)

				self.init_weights()



		@add_start_docstrings_to_model_forward(snake_case__		)
		def   _snake_case       (       self     :     Union[str, Any]     ,  snake_case__     :     Union[str, Any]=None     ,  snake_case__     :     Optional[int]=None     ,  snake_case__     :     str=None     ,  snake_case__     :     Dict=None     ,  snake_case__     :     str=None     ,  snake_case__     :     Union[str, Any]=None     ,  snake_case__     :     int=None     ,  snake_case__     :     Union[str, Any]=-1     ,  snake_case__     :     Any=False     ,  )      ->	Union[str, Any]:
				_lowerCamelCase				   =  self.num_layers
				try:
						_lowerCamelCase				   =  self.bert(
						    snake_case__     ,  attention_mask=snake_case__     ,  token_type_ids=snake_case__     ,  position_ids=snake_case__     ,  head_mask=snake_case__     ,  inputs_embeds=snake_case__     ,  )
						# sequence_output, pooled_output, (hidden_states), (attentions), highway exits

						_lowerCamelCase				   =  outputs[1]

						_lowerCamelCase				   =  self.dropout(snake_case__		)
						_lowerCamelCase				   =  self.classifier(snake_case__		)
						_lowerCamelCase				   =  (logits,) + outputs[2:]  # add hidden states and attention if they are here
				except HighwayException as e:
						_lowerCamelCase				   =  e.message
						_lowerCamelCase				   =  e.exit_layer
						_lowerCamelCase				   =  outputs[0]

				if not self.training:
						_lowerCamelCase				   =  entropy(snake_case__		)
						_lowerCamelCase				   =  []
						_lowerCamelCase				   =  []
				if labels is not None:
						if self.num_labels == 1:
								#  We are doing regression
								_lowerCamelCase				   =  MSELoss()
								_lowerCamelCase				   =  loss_fct(logits.view(-1		)     ,  labels.view(-1		)		)
						else:
								_lowerCamelCase				   =  CrossEntropyLoss()
								_lowerCamelCase				   =  loss_fct(logits.view(-1     ,  self.num_labels		)     ,  labels.view(-1		)		)

						# work with highway exits
						_lowerCamelCase				   =  []
						for highway_exit in outputs[-1]:
								_lowerCamelCase				   =  highway_exit[0]
								if not self.training:
										highway_logits_all.append(snake_case__		)
										highway_entropy.append(highway_exit[2]		)
								if self.num_labels == 1:
										#  We are doing regression
										_lowerCamelCase				   =  MSELoss()
										_lowerCamelCase				   =  loss_fct(highway_logits.view(-1		)     ,  labels.view(-1		)		)
								else:
										_lowerCamelCase				   =  CrossEntropyLoss()
										_lowerCamelCase				   =  loss_fct(highway_logits.view(-1     ,  self.num_labels		)     ,  labels.view(-1		)		)
								highway_losses.append(snake_case__		)

						if train_highway:
								_lowerCamelCase				   =  (sum(highway_losses[:-1]		),) + outputs
								# exclude the final highway, of course
						else:
								_lowerCamelCase				   =  (loss,) + outputs
				if not self.training:
						_lowerCamelCase				   =  outputs + ((original_entropy, highway_entropy), exit_layer)
						if output_layer >= 0:
								_lowerCamelCase				   =  (
								    (outputs[0],) + (highway_logits_all[output_layer],) + outputs[2:]
								)  # use the highway of the last layer

				return outputs  # (loss), logits, (hidden_states), (attentions), (highway_exits)
from typing import Any, Dict, Optional

import torch
import torch.nn.functional as F
from torch import nn

from ..utils import maybe_allow_in_graph
from .activations import get_activation
from .attention_processor import Attention
from .embeddings import CombinedTimestepLabelEmbeddings





@maybe_allow_in_graph
class     lowerCAmelCase__     (				nn.Module			):


		'''simple docstring'''






		def __init__(       self     :     Dict     ,  snake_case__     :     int     ,  snake_case__     :     int     ,  snake_case__     :     int     ,  snake_case__     :     Tuple=0.0     ,  snake_case__     :     Optional[int] = None     ,  snake_case__     :     str = "geglu"     ,  snake_case__     :     Optional[int] = None     ,  snake_case__     :     bool = False     ,  snake_case__     :     bool = False     ,  snake_case__     :     bool = False     ,  snake_case__     :     bool = False     ,  snake_case__     :     bool = True     ,  snake_case__     :     str = "layer_norm"     ,  snake_case__     :     bool = False     ,  )      ->	Dict:
				super().__init__()
				_lowerCamelCase				   =  only_cross_attention

				_lowerCamelCase				   =  (num_embeds_ada_norm is not None) and norm_type == 'ada_norm_zero'
				_lowerCamelCase				   =  (num_embeds_ada_norm is not None) and norm_type == 'ada_norm'

				if norm_type in ("ada_norm", "ada_norm_zero") and num_embeds_ada_norm is None:
						raise ValueError(
						    f"""`norm_type` is set to {norm_type}, but `num_embeds_ada_norm` is not defined. Please make sure to"""
						    f""" define `num_embeds_ada_norm` if setting `norm_type` to {norm_type}."""		)

				# Define 3 blocks. Each block has its own normalization layer.
				# 1. Self-Attn
				if self.use_ada_layer_norm:
						_lowerCamelCase				   =  AdaLayerNorm(snake_case__     ,  snake_case__		)
				elif self.use_ada_layer_norm_zero:
						_lowerCamelCase				   =  AdaLayerNormZero(snake_case__     ,  snake_case__		)
				else:
						_lowerCamelCase				   =  nn.LayerNorm(snake_case__     ,  elementwise_affine=snake_case__		)
				_lowerCamelCase				   =  Attention(
				    query_dim=snake_case__     ,  heads=snake_case__     ,  dim_head=snake_case__     ,  dropout=snake_case__     ,  bias=snake_case__     ,  cross_attention_dim=cross_attention_dim if only_cross_attention else None     ,  upcast_attention=snake_case__     ,  )

				# 2. Cross-Attn
				if cross_attention_dim is not None or double_self_attention:
						# We currently only use AdaLayerNormZero for self attention where there will only be one attention block.
						# I.e. the number of returned modulation chunks from AdaLayerZero would not make sense if returned during
						# the second cross attention block.
						_lowerCamelCase				   =  (
						    AdaLayerNorm(snake_case__     ,  snake_case__		)
						    if self.use_ada_layer_norm
						    else nn.LayerNorm(snake_case__     ,  elementwise_affine=snake_case__		)
						)
						_lowerCamelCase				   =  Attention(
						    query_dim=snake_case__     ,  cross_attention_dim=cross_attention_dim if not double_self_attention else None     ,  heads=snake_case__     ,  dim_head=snake_case__     ,  dropout=snake_case__     ,  bias=snake_case__     ,  upcast_attention=snake_case__     ,  )  # is self-attn if encoder_hidden_states is none
				else:
						_lowerCamelCase				   =  None
						_lowerCamelCase				   =  None

				# 3. Feed-forward
				_lowerCamelCase				   =  nn.LayerNorm(snake_case__     ,  elementwise_affine=snake_case__		)
				_lowerCamelCase				   =  FeedForward(snake_case__     ,  dropout=snake_case__     ,  activation_fn=snake_case__     ,  final_dropout=snake_case__		)

				# let chunk size default to None
				_lowerCamelCase				   =  None
				_lowerCamelCase				   =  0
		def   _snake_case       (       self     :     str     ,  snake_case__     :     Optional[int]     ,  snake_case__     :     int		)      ->	Optional[Any]:
				# Sets chunk feed-forward
				_lowerCamelCase				   =  chunk_size
				_lowerCamelCase				   =  dim



		def   _snake_case       (       self     :     Union[str, Any]     ,  snake_case__     :     torch.FloatTensor     ,  snake_case__     :     Optional[torch.FloatTensor] = None     ,  snake_case__     :     Optional[torch.FloatTensor] = None     ,  snake_case__     :     Optional[torch.FloatTensor] = None     ,  snake_case__     :     Optional[torch.LongTensor] = None     ,  snake_case__     :     Dict[str, Any] = None     ,  snake_case__     :     Optional[torch.LongTensor] = None     ,  )      ->	List[Any]:
				# Notice that normalization is always applied before the real computation in the following blocks.
				# 1. Self-Attention
				if self.use_ada_layer_norm:
						_lowerCamelCase				   =  self.norma(snake_case__     ,  snake_case__		)
				elif self.use_ada_layer_norm_zero:
						_lowerCamelCase   ,							_lowerCamelCase   ,							_lowerCamelCase   ,							_lowerCamelCase   ,							_lowerCamelCase				   =  self.norma(
						    snake_case__     ,  snake_case__     ,  snake_case__     ,  hidden_dtype=hidden_states.dtype		)
				else:
						_lowerCamelCase				   =  self.norma(snake_case__		)

				_lowerCamelCase				   =  cross_attention_kwargs if cross_attention_kwargs is not None else {}

				_lowerCamelCase				   =  self.attna(
				    snake_case__     ,  encoder_hidden_states=encoder_hidden_states if self.only_cross_attention else None     ,  attention_mask=snake_case__     ,  **snake_case__     ,  )
				if self.use_ada_layer_norm_zero:
						_lowerCamelCase				   =  gate_msa.unsqueeze(1		) * attn_output
				_lowerCamelCase				   =  attn_output + hidden_states

				# 2. Cross-Attention
				if self.attna is not None:
						_lowerCamelCase				   =  (
						    self.norma(snake_case__     ,  snake_case__		) if self.use_ada_layer_norm else self.norma(snake_case__		)
						)

						_lowerCamelCase				   =  self.attna(
						    snake_case__     ,  encoder_hidden_states=snake_case__     ,  attention_mask=snake_case__     ,  **snake_case__     ,  )
						_lowerCamelCase				   =  attn_output + hidden_states

				# 3. Feed-forward
				_lowerCamelCase				   =  self.norma(snake_case__		)

				if self.use_ada_layer_norm_zero:
						_lowerCamelCase				   =  norm_hidden_states * (1 + scale_mlp[:, None]) + shift_mlp[:, None]

				if self._chunk_size is not None:
						# "feed_forward_chunk_size" can be used to save memory
						if norm_hidden_states.shape[self._chunk_dim] % self._chunk_size != 0:
								raise ValueError(
								    f"""`hidden_states` dimension to be chunked: {norm_hidden_states.shape[self._chunk_dim]} has to be divisible by chunk size: {self._chunk_size}. Make sure to set an appropriate `chunk_size` when calling `unet.enable_forward_chunking`."""		)

						_lowerCamelCase				   =  norm_hidden_states.shape[self._chunk_dim] // self._chunk_size
						_lowerCamelCase				   =  torch.cat(
						    [self.ff(snake_case__		) for hid_slice in norm_hidden_states.chunk(snake_case__     ,  dim=self._chunk_dim		)]     ,  dim=self._chunk_dim     ,  )
				else:
						_lowerCamelCase				   =  self.ff(snake_case__		)

				if self.use_ada_layer_norm_zero:
						_lowerCamelCase				   =  gate_mlp.unsqueeze(1		) * ff_output

				_lowerCamelCase				   =  ff_output + hidden_states

				return hidden_states





class     lowerCAmelCase__     (				nn.Module			):


		'''simple docstring'''






		def __init__(       self     :     Union[str, Any]     ,  snake_case__     :     int     ,  snake_case__     :     Optional[int] = None     ,  snake_case__     :     int = 4     ,  snake_case__     :     float = 0.0     ,  snake_case__     :     str = "geglu"     ,  snake_case__     :     bool = False     ,  )      ->	Optional[int]:
				super().__init__()
				_lowerCamelCase				   =  int(dim * mult		)
				_lowerCamelCase				   =  dim_out if dim_out is not None else dim

				if activation_fn == "gelu":
						_lowerCamelCase				   =  GELU(snake_case__     ,  snake_case__		)
				if activation_fn == "gelu-approximate":
						_lowerCamelCase				   =  GELU(snake_case__     ,  snake_case__     ,  approximate='tanh'		)
				elif activation_fn == "geglu":
						_lowerCamelCase				   =  GEGLU(snake_case__     ,  snake_case__		)
				elif activation_fn == "geglu-approximate":
						_lowerCamelCase				   =  ApproximateGELU(snake_case__     ,  snake_case__		)

				_lowerCamelCase				   =  nn.ModuleList([]		)
				# project in
				self.net.append(snake_case__		)
				# project dropout
				self.net.append(nn.Dropout(snake_case__		)		)
				# project out
				self.net.append(nn.Linear(snake_case__     ,  snake_case__		)		)
				# FF as used in Vision Transformer, MLP-Mixer, etc. have a final dropout
				if final_dropout:
						self.net.append(nn.Dropout(snake_case__		)		)



		def   _snake_case       (       self     :     Tuple     ,  snake_case__     :     List[Any]		)      ->	Optional[int]:
				for module in self.net:
						_lowerCamelCase				   =  module(snake_case__		)
				return hidden_states





class     lowerCAmelCase__     (				nn.Module			):


		'''simple docstring'''






		def __init__(       self     :     str     ,  snake_case__     :     int     ,  snake_case__     :     int     ,  snake_case__     :     str = "none"		)      ->	Any:
				super().__init__()
				_lowerCamelCase				   =  nn.Linear(snake_case__     ,  snake_case__		)
				_lowerCamelCase				   =  approximate
		def   _snake_case       (       self     :     List[Any]     ,  snake_case__     :     List[Any]		)      ->	int:
				if gate.device.type != "mps":
						return F.gelu(snake_case__     ,  approximate=self.approximate		)
				# mps: gelu is not implemented for float16
				return F.gelu(gate.to(dtype=torch.floataa		)     ,  approximate=self.approximate		).to(dtype=gate.dtype		)



		def   _snake_case       (       self     :     Optional[int]     ,  snake_case__     :     Union[str, Any]		)      ->	str:
				_lowerCamelCase				   =  self.proj(snake_case__		)
				_lowerCamelCase				   =  self.gelu(snake_case__		)
				return hidden_states





class     lowerCAmelCase__     (				nn.Module			):


		'''simple docstring'''






		def __init__(       self     :     Dict     ,  snake_case__     :     int     ,  snake_case__     :     int		)      ->	List[Any]:
				super().__init__()
				_lowerCamelCase				   =  nn.Linear(snake_case__     ,  dim_out * 2		)
		def   _snake_case       (       self     :     Optional[Any]     ,  snake_case__     :     Optional[int]		)      ->	Optional[Any]:
				if gate.device.type != "mps":
						return F.gelu(snake_case__		)
				# mps: gelu is not implemented for float16
				return F.gelu(gate.to(dtype=torch.floataa		)		).to(dtype=gate.dtype		)



		def   _snake_case       (       self     :     List[str]     ,  snake_case__     :     Optional[Any]		)      ->	Optional[int]:
				_lowerCamelCase   ,							_lowerCamelCase				   =  self.proj(snake_case__		).chunk(2     ,  dim=-1		)
				return hidden_states * self.gelu(snake_case__		)





class     lowerCAmelCase__     (				nn.Module			):


		'''simple docstring'''






		def __init__(       self     :     Dict     ,  snake_case__     :     int     ,  snake_case__     :     int		)      ->	Tuple:
				super().__init__()
				_lowerCamelCase				   =  nn.Linear(snake_case__     ,  snake_case__		)



		def   _snake_case       (       self     :     Optional[Any]     ,  snake_case__     :     List[Any]		)      ->	Optional[int]:
				_lowerCamelCase				   =  self.proj(snake_case__		)
				return x * torch.sigmoid(1.702 * x		)





class     lowerCAmelCase__     (				nn.Module			):


		'''simple docstring'''






		def __init__(       self     :     Optional[Any]     ,  snake_case__     :     Tuple     ,  snake_case__     :     Any		)      ->	Dict:
				super().__init__()
				_lowerCamelCase				   =  nn.Embedding(snake_case__     ,  snake_case__		)
				_lowerCamelCase				   =  nn.SiLU()
				_lowerCamelCase				   =  nn.Linear(snake_case__     ,  embedding_dim * 2		)
				_lowerCamelCase				   =  nn.LayerNorm(snake_case__     ,  elementwise_affine=snake_case__		)



		def   _snake_case       (       self     :     Tuple     ,  snake_case__     :     str     ,  snake_case__     :     Dict		)      ->	Optional[int]:
				_lowerCamelCase				   =  self.linear(self.silu(self.emb(snake_case__		)		)		)
				_lowerCamelCase   ,							_lowerCamelCase				   =  torch.chunk(snake_case__     ,  2		)
				_lowerCamelCase				   =  self.norm(snake_case__		) * (1 + scale) + shift
				return x





class     lowerCAmelCase__     (				nn.Module			):


		'''simple docstring'''






		def __init__(       self     :     Any     ,  snake_case__     :     Optional[Any]     ,  snake_case__     :     Union[str, Any]		)      ->	Dict:
				super().__init__()

				_lowerCamelCase				   =  CombinedTimestepLabelEmbeddings(snake_case__     ,  snake_case__		)

				_lowerCamelCase				   =  nn.SiLU()
				_lowerCamelCase				   =  nn.Linear(snake_case__     ,  6 * embedding_dim     ,  bias=snake_case__		)
				_lowerCamelCase				   =  nn.LayerNorm(snake_case__     ,  elementwise_affine=snake_case__     ,  eps=1e-6		)



		def   _snake_case       (       self     :     Dict     ,  snake_case__     :     Tuple     ,  snake_case__     :     str     ,  snake_case__     :     str     ,  snake_case__     :     List[Any]=None		)      ->	int:
				_lowerCamelCase				   =  self.linear(self.silu(self.emb(snake_case__     ,  snake_case__     ,  hidden_dtype=snake_case__		)		)		)
				_lowerCamelCase   ,							_lowerCamelCase   ,							_lowerCamelCase   ,							_lowerCamelCase   ,							_lowerCamelCase   ,							_lowerCamelCase				   =  emb.chunk(6     ,  dim=1		)
				_lowerCamelCase				   =  self.norm(snake_case__		) * (1 + scale_msa[:, None]) + shift_msa[:, None]
				return x, gate_msa, shift_mlp, scale_mlp, gate_mlp





class     lowerCAmelCase__     (				nn.Module			):


		'''simple docstring'''






		def __init__(       self     :     Tuple     ,  snake_case__     :     int     ,  snake_case__     :     int     ,  snake_case__     :     int     ,  snake_case__     :     Optional[str] = None     ,  snake_case__     :     float = 1e-5		)      ->	int:
				super().__init__()
				_lowerCamelCase				   =  num_groups
				_lowerCamelCase				   =  eps

				if act_fn is None:
						_lowerCamelCase				   =  None
				else:
						_lowerCamelCase				   =  get_activation(snake_case__		)

				_lowerCamelCase				   =  nn.Linear(snake_case__     ,  out_dim * 2		)



		def   _snake_case       (       self     :     Union[str, Any]     ,  snake_case__     :     int     ,  snake_case__     :     Optional[Any]		)      ->	Union[str, Any]:
				if self.act:
						_lowerCamelCase				   =  self.act(snake_case__		)
				_lowerCamelCase				   =  self.linear(snake_case__		)
				_lowerCamelCase				   =  emb[:, :, None, None]
				_lowerCamelCase   ,							_lowerCamelCase				   =  emb.chunk(2     ,  dim=1		)

				_lowerCamelCase				   =  F.group_norm(snake_case__     ,  self.num_groups     ,  eps=self.eps		)
				_lowerCamelCase				   =  x * (1 + scale) + shift
				return x